<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>about</title>
</head>

<body>
  <div class="test">about</div>
  <div class="logRegBackground">范围覆盖但是不代表</div>
  <div class="logRegBackground">1237</div>
  <div class="logRegBackground">7867835</div>
</body>

</html>